[XeTeX] Local changes to mathmode digits

Nathan Sidoli nathan.sidoli at utoronto.ca
Sat Jan 19 20:23:40 CET 2013


Thank you. That worked very nicely.


On 13/01/13 21:29, David Carlisle wrote:
> On 12 January 2013 15:58, Nathan Camillo Sidoli <sidoli at waseda.jp> wrote:
>> Is there anyway to change the math mode digits for only certain parts of a
>> text?
>>
>> I have some math in Arabic text in a largely English document. I would like
>> to change the math mode digits in this parts to use Eastern Arabic digits,
>> whereas the rest of the text will use standard Hindu-Arabic digits.
>>
>> For an entire document, I can use
>>
>> \usepackage{xepersian-mathsdigitspecarab}
>> \setdigitfont[Mapping=arabicdigits]{Arabic Font}
>>
>> to change the digits, but is there anyway I can just make this active for
>> certain parts of the overall document?
>>
>>
>> Thanks,
>>
>> Nathan
>>
>>
> The packages may have a higher level interface to this, but othewise
> you can just (locally) change the mathcode, something like
>
> \documentclass{article}
>
> \usepackage{unicode-math}
> \setmathfont{xits-math.otf}
>
>
> \def\offsetdigits#1{%
> \xoffset{#1}0%
> \xoffset{#1}1%
> \xoffset{#1}2%
> \xoffset{#1}3%
> \xoffset{#1}4%
> \xoffset{#1}5%
> \xoffset{#1}6%
> \xoffset{#1}7%
> \xoffset{#1}8%
> \xoffset{#1}9}
>
> \def\xoffset#1#2{%
> \XeTeXmathcodenum`#2=\numexpr\XeTeXmathcodenum`#2-`0+#1\relax}
>
> \begin{document}
>
>
> $a = 123$
>
> {
> %ARABIC-INDIC DIGIT ZERO
> \offsetdigits{"0660}
>
> $a = 123$
>
> }
>
> {
> %EXTENDED ARABIC-INDIC DIGIT ZERO (not in my fonts)
> \offsetdigits{"06F0}
>
> $a = 123$
>
> }
>
>
> $a = 123$
>
> \end{document}
>
>
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